DBG_21045 ERROR: Can't create files in the directory

While running the ETL, you may encounter the following error

TRANSF_1_1_1> PMF_15004 Unable to open file.
PMF_15004 [/oraclebi/infrmatica/714/server/Cache/PMLKUP9442_262173.dat]
TRANSF_1_1_1> DBG_21045 ERROR: Can't create files in the directory "/oraclebi/infrmatica/714/server/Cache"

TRANSF_1_1_1> DBG_21052 Check file system permission and free space for possible failure

This error usually occur when the Informatica try to create a huge Cache file but no space available on the mount point. Check the space available using the df -h command when this error occur and add more disk space to the mount point in question.